Optical Element and Optical Mechanism

An optical mechanism comprising:

• a first optical element;
• a second optical element;
• and
• a λ/2 wavelength plate between the first optical element and the second optical element,
• the first optical element including:
• a first waveguide, formed as a plate having a first plane and a second plane opposing each other, that propagates light incident at a predetermined angle while reflecting the light between the first plane and the second plane;
• a first polarizing beam splitter film, adhered to the first plane of the first waveguide, that separates light incident from the first waveguide into transmitted light and reflected light;
• and
• a first deflector, joined to the first waveguide with the first polarizing beam splitter film therebetween, having a plurality of first reflecting surfaces provided along a first direction, the first reflecting surfaces reflecting, in a direction substantially perpendicular to a surface of the first polarizing beam splitter film, light that is incident on the first plane at the predetermined angle and transmitted by the first polarizing beam splitter film,
• the first polarizing beam splitter film reflecting a majority of light incident at the predetermined angle from the first waveguide and transmitting a majority or all of light incident in a substantially perpendicular direction from the first deflector,
• the second optical element including:
• a second waveguide, formed as a plate having a third plane and a fourth plane opposing each other, that propagates light incident at a second predetermined angle while reflecting the light between the third plane and the fourth plane;
• a second polarizing beam splitter film, adhered to the third plane of the second waveguide, that separates light incident from the second waveguide into transmitted light and reflected light;
• and
• a second deflector, joined to the second waveguide with the second polarizing beam splitter film therebetween, having a plurality of third reflecting surfaces provided along a second direction differing from the first direction, the third reflecting surfaces reflecting, in a direction substantially perpendicular to a surface of the second polarizing beam splitter film, light that is incident on the third plane at the second predetermined angle and transmitted by the second polarizing beam splitter film,
• the second polarizing beam splitter film reflecting a majority of light incident at the second predetermined angle from the second waveguide and transmitting a majority or all of light incident in a substantially perpendicular direction from the second deflector, and
• the first optical element and the second optical element being disposed so that light emitted from the fourth plane of the second optical element is incident on the first optical element.

An optical mechanism comprising:

• an optical element;
• and
• a laser light source emitting laser light that is guided into the optical element,
• the optical element including:
• a first waveguide, formed as a plate having a first plane and a second plane opposing each other, that propagates light incident at a predetermined angle while reflecting the light between the first plane and the second plane;
• a first beam splitter film, adhered to the first plane of the first waveguide, that separates light incident from the first waveguide into transmitted light and reflected light;
• and
• a first deflector, joined to the first waveguide with the first beam splitter film therebetween, having a plurality of first reflecting surfaces provided along a first direction, the first reflecting surfaces reflecting, in a direction substantially perpendicular to a surface of the first beam splitter film, light that is incident on the first plane at the predetermined angle and transmitted by the first beam splitter film,
• the first beam splitter film being a polarizing beam splitter film that reflects a majority of s-polarized light incident at the predetermined angle from the first waveguide and transmits a majority or all of s-polarized light incident in a substantially perpendicular direction from the first deflector.